闪电2裂纹事件, 闪电2制动系统事件 以及尾勾的改进进展

来源:百度文库 编辑:超级军网 时间:2024/05/01 21:07:39
   F-35 Marine Model Stress Testing Halted Over Cracks
By Tony Capaccio - Jan 12, 2013 12:47 PM ET

"Durability testing on the most complicated version of Lockheed Martin Corp.’s (LMT) F-35 was halted last month after “multiple” cracks were discovered in the fighter jet, according to the Pentagon’s testing office.
The previously undisclosed halt in high-stress ground testing involves the F-35B, the Marine Corps' version that must withstand short takeoffs and landings on carriers and amphibious warfare vessels, according to an annual report on the F-35 that Defense Department testing chief Michael Gilmore sent to Congress yesterday. Flight testing wasn’t affected."







   F-35B:
"...Planned wet runway testing, required to assess braking performance with a new brake control unit, has been delayed due to the inability to create the properly degraded friction conditions at the Patuxent River Naval Air Station (NAS), Maryland. The F-35B training aircraft at Eglin will be restricted to dry runway operations only until the wet runway testing is completed...."



F-35C
• A redesign of the arresting hook system for the F-35C to correct the inability to consistently catch cables and compensate for greater than predicted loads took place in 2012. The redesign includes modified hook point shape to catch the wire, one-inch longer shank to improve point of entry, addition of damper for end-of-stroke loads, increased size of upswing damper and impact plate, addition of end?of?stroke snubber. In 2012, the following occurred:
-- Initial loads and sizing study completed showed higher than predicted loads, impacting the upper portion of the arresting hook system (referred to as the “Y frame,” where loads are translated from the hook point to the aircraft) and hold down damper (January 2012)
-- Risk reduction activities, including cable rollover dynamics testing at Patuxent River (March 2012), deck obstruction loads tests at Lakehurst (April 2012)
-- Flight tests with CF-3 using new hook point and new hold down damper design at Lakehurst (August 2012)
-- 72 of 72 successful roll-in tests with MK-7 and E-28 gear
-- 5 of 8 successful fly-in tests; 3 of 8 bolters (missed wire)
-- Preliminary design review of updated design completed (August 15, 2012)..."



   www.f-16.net

  
      F-35 Marine Model Stress Testing Halted Over Cracks
By Tony Capaccio - Jan 12, 2013 12:47 PM ET

"Durability testing on the most complicated version of Lockheed Martin Corp.’s (LMT) F-35 was halted last month after “multiple” cracks were discovered in the fighter jet, according to the Pentagon’s testing office.
The previously undisclosed halt in high-stress ground testing involves the F-35B, the Marine Corps' version that must withstand short takeoffs and landings on carriers and amphibious warfare vessels, according to an annual report on the F-35 that Defense Department testing chief Michael Gilmore sent to Congress yesterday. Flight testing wasn’t affected."







   F-35B:
"...Planned wet runway testing, required to assess braking performance with a new brake control unit, has been delayed due to the inability to create the properly degraded friction conditions at the Patuxent River Naval Air Station (NAS), Maryland. The F-35B training aircraft at Eglin will be restricted to dry runway operations only until the wet runway testing is completed...."



F-35C
• A redesign of the arresting hook system for the F-35C to correct the inability to consistently catch cables and compensate for greater than predicted loads took place in 2012. The redesign includes modified hook point shape to catch the wire, one-inch longer shank to improve point of entry, addition of damper for end-of-stroke loads, increased size of upswing damper and impact plate, addition of end?of?stroke snubber. In 2012, the following occurred:
-- Initial loads and sizing study completed showed higher than predicted loads, impacting the upper portion of the arresting hook system (referred to as the “Y frame,” where loads are translated from the hook point to the aircraft) and hold down damper (January 2012)
-- Risk reduction activities, including cable rollover dynamics testing at Patuxent River (March 2012), deck obstruction loads tests at Lakehurst (April 2012)
-- Flight tests with CF-3 using new hook point and new hold down damper design at Lakehurst (August 2012)
-- 72 of 72 successful roll-in tests with MK-7 and E-28 gear
-- 5 of 8 successful fly-in tests; 3 of 8 bolters (missed wire)
-- Preliminary design review of updated design completed (August 15, 2012)..."



   www.f-16.net

  
   
鸟语花香啊。。。。
这个无甚诚意的帖子还是沉了吧-_-!